New features:

key/value pairs have optional expiry, which propagates to the other peers, it will cause keys to get deleted (although this is not an EXACT mechanism, so it shouldn't be used as such)

IPv6 support

various bug fixes

node-gossip implements a gossip protocol w/failure detection, allowing you to create a fault-tolerant, self-managing cluster of node.js processes. Each server in the cluster has it's own set of key-value pairs which are propogated to the others peers in the cluster. The API allows you to make changes to the local state, listen for changes in state, listen for new peers and be notified when a peer appears to be dead or appears to have come back to life.

Check out the the scripts in the simulations/ directory for some examples.

Acknowledgements

Both the gossip protocol and the failure detection algorithms are based off of academic papers and Cassandra's (http://www.cassandra.org/) implementation of those papers. This library is highly indebted to both.